10 Questions
In a CO2 laser, energy transfer from O2 raises the CO2 molecules into an excited state.
False
CO lasers can operate without the need for nitrogen.
True
CO lasers have emission lines only in the mid-infrared spectral range.
False
N2 is directly responsible for the emission of photons in a CO2 laser.
False
CO2 molecules can only decay to the ground state through radiative losses in a CO2 laser.
False
What is the primary mechanism through which CO2 molecules return to the ground state in a CO2 laser?
Non-radiative losses
What is the primary difference in the energy transfer process between CO and CO2 lasers?
CO lasers do not involve decaying into lower states.
What is a notable feature of carbon monoxide (CO) lasers that made them promising over 50 years ago?
Efficiency in converting electrical energy into light
Which process allows CO molecules to further excite other molecules in a CO laser?
Vibrational-vibrational transfer
In what spectral range do CO lasers have emission lines?
5 to 6 µm
Explore the differences between CO2 and CO lasers in terms of energy transfer, excited states, photon emissions, and pumping mechanisms. Learn about the role of nitrogen in CO2 lasers and the absence of nitrogen in CO lasers.
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